#include <iostream>
#include <opencv2/opencv.hpp>
using namespace cv;
using namespace std;

Mat src, dst, gray_src;

int main() {
  src = imread("../images/8.jpg");
  if (src.empty()) {
    cout << "could not load image.." << endl;
    return -1;
  }
  namedWindow("opencv setup demo", CV_WINDOW_AUTOSIZE);
  imshow("opencv setup demo", src);

  waitKey(0);
  return 0;
}